218920227980

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{6811457}}^1$

素因数の和:6813073

約数の個数: 24

約数和(自身を含む): 460018627488

約数和(自身を除く): 241098399508

約数列:

[1, 2, 4, 5, 10, 20, 1607, 3214, 6428, 8035, 16070, 32140, 6811457, 13622914, 27245828, 34057285, 68114570, 136229140, 10946011399, 21892022798, 43784045596, 54730056995, 109460113990, 218920227980]

約数ペア:

[(1, 218920227980), (2, 109460113990), (4, 54730056995), (5, 43784045596), (10, 21892022798), (20, 10946011399), (1607, 136229140), (3214, 68114570), (6428, 34057285), (8035, 27245828), (16070, 13622914), (32140, 6811457)]